Means for trimming soft-metal pipe flanges



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PHILTP MUNLLEN. AND ANTON c.v SCHUERMANN, or DECATUR, iLLiNois, AssIGNoRS To ADOLPHMUELLER, TRUSTEE, or DECATUR, iLLiNoIs'.

MANS FOR TRIMMNG SOFT-METAL PIPE LANGS.

'Original application filed November 12, 191.9, Serial No. 33v'i1r99.;Y Dvividedban'd this application ld September 26, 1923. Serial No. 664,939.

The present invention relates to irnprovement in means for completing the flangi'ng of soft metal pipes, such as leady p service pipes and more particularly` to a means for completingthe Hanging operation by removing` any surplus metal that may project beyond the bushing'or sleeve against which the flange is formed.

In the earlier application, Serial No. 337,- 499, of which the present case is a division we have described and claimed a means for producing such a flange asis to be. coinpleted by the means hereinafter particularly described and claimed.

In the accompanying drawings:

Fig. 1 is a View of anj implement embody.

ing the present invention showing 'the same in-position for completing aA flange kformed in accordance with the' method of the' aforesaid earlier application. 'I

Fig. 2 is an end elevation of thezbody of the trimming tool. j l n Y v Fig. 3 is a partial elevation and longitudinal section of the trimming tool'.

Fig. 4 is a view of a plurality of templets which may be employed toV adapt the trinrl ming implement for use with tubes of dif--` ferent diameters.

Referring to the drawings, in the severall figures of which corresponding parts are indicated by like' reference characters, 1 designates the lower jaw of a body clamp which is provided with antextensioii 2 adapted to be rigidly secured an angular postk member connected to a board or other support 5 bolts. l V A movable jaw 7 is pivotally connected at one side to the aw 1 and suitable means are provided by which the two jaws may be held in closedxrelation and in clamping engagement with a pipelO to be flanged.

Each jaw is provided with a liner yor bushing 11, which at one end is recessed to receive the collar or sleeve 12 against the outer face of which the end of theA soft metalpipe 10 is to be flanged. After the pipe 10 has been properly clainped between the jaws 1, 7, the end thereof projecting beyond the sleeve 12 isjexpanded against the face of the sleevel or collar 12 by inserting suitably shaped implements therein and ap lying force to the outer ends thereof. i

.After the Harige has been thus completed itis necessary to remove the portion tthereof that projects radially beyond the sleeve-or collar 12 and for this purpose we preferably employ the implement which is specifically illustrated inthe drawiiig. -As shown this comprises a body B'OQ-whicliis provided' at one end with ashank 31 adapted to be engaged in the soclrctof an ordinary brace 32. The end of the bodyrembte from the shank 31 is reduced in.v diameter and on it is fitted a bushing 33 having an exterior diameter corresponding to Ythat of the bore ofthe pipe 10 into which it is to extend. Such bushing is detachably connected tothe; body by `any suitable'mean's, a screwt beingshown in the drawing for thispun.

pose. `It will be seenvthat the bushing 33 may be readily `removed and replacedby another so'tliat the implement will be readily adapted for use with pipesy of differentdiameters'. To adapt the implement for use with a pipe of one particular diameter it is merely necessary ytojremove the bushing 33 and 'replacefit with 4one corresponding to the pipe to be actedon. .l

j It will alsofbe understood that the liners 11 are removable so that ther clamping means may beeasily adjusted to correctly grasp a pipe of any diameter by merely providing liners or bushingsof proper thickness.

The cutting blade 36 is :iittedin an aperture formed in a fpost 87. that' extends through a passage in the vbody SO'and is held in the desired position therein by a set screw 38. The blade 3G may be adjusted longitudinally through the aperture in the post 37 and is held in,` the desired position by a set screw 410. p, Y l v To enable v'the blade 36 to be accurately positioned'v to properly triinportions of the flange 10l that project radially beyond the outer face ofthe sleeve or collar 12, a disl 39 having lthe same diam'eteras the outer face of the sleeve or collar "12 is initially slipped over the bushing 33"into position against a flange 33a thereon. The set screws 38 and 4:0 are loosened and the post 37 and blade 36 adjusted so that the cutting edge of the blade will bear lightly on the periphery of the disk 39 When the parts are rigidly connected by tightening said set screws. The disk 39 is then slipped from the bushing 33 and the latter inserted in the flanged end of' the tube 10 which is held Within the clamping jaws l and 7, as vshown in Fig. l. The parts are so proportioned that when the flange 332L of' the bushing B3 bears against the outer surface of the pipe flange 102L the cutting edgevof the 'blade'36 will extend through. said flange and when the implement is rotated by the brace 32 any portion of said flange projecting beyond the sleeve or collar l2 will be removed and the peripheral edge of the flange formed smooth and flush With or a continuation of said sleeve.

The manner of using and the advantages incident to the means hereinbefore described will be readily apparent from the foregoing description and drawings.

T,Vhile the invention has been described in connection with a method of forming flanges described and claimed in the aforesaid earlier application, it is evident that the improved trin'nning implement might be used to remove surplus metal from flanges formed by other methods. As the radial extension of the flange must correspond to the diameter of the outer end of the sleeve or collar 12 and collars of different diameters may be used it is customary to provide a plurality of disks 39 as shown in Fig. 4.-. In adjusting the cutting blade the operator will, of course, select the disk 39 corresponding to the diameter of the outer end of the sleeve or collar '12 on the particular pipe Which is to be operated upon.

There can, of course, be considerable modification of details of the cutting implement Without departing from the invention, and therefore except. as particular features shown are specifically referred to in the appended claims it is not desired to limit the invention to the exact details illustrated. ln other Words, the ydrawings are intended to be illustrative of the invention and not as necessarily limiting all of the claims to the exact details shown. 1

Having thus described the invention what is claimed and desired to be secured by Letters Patent is:

l. An implement for trimming the peripheral edge of a flange formed at the end of a soft metal pipe comprising a stem having an end portion of the diameter and adapted to be positioned Within the bore of the flanged end of a pipe and provided with an abutment adapted to contact with the said end of the pipe, and a cutting blade bodily adjustable both radially and longitudinally of the stem and extending across the edge of the pipe flange when the stem is 2. A'llhe combination with a support. adapted to embrace a soft metal pipe, having Va flange at one end, and a collar surrounding the pipe and against Which the flange is formed, of means for removingmetal of the flange that extends radially beyond the collar comprising a rotatable stem adapted to fit Within the flanged end of the pipe, and a cutting' tool radially spaced from the tube axis a distance corresponding to the longest radius of the collar and of a length to extend entirely across the peripheral edge of the flange.

3. The herein described implement, for trimming the peripheral edge off a flange formed at the end of a soft'inetal pipe, comprising a rotatable stem adapted to enter `the flanged end of a pipe, a sleeve removably secured on the portion of the stem that extends into the pipe, said sleeve having an exterior ldiameter corresponding to the surrounding bore of the pipe, and provided with a radial projection that engages the outer tace of the tlange on the pipe, and a cutting tool positioned to engage the edge oi" the pipe flange.

el.. The herein described implement, for

trin'm'iing'the peripheral'e'dge of a flangeV formed at the end of la soft metal pipe, comprising a rotatable stem adapted to enter the flanged end of a pipe, a sleeve removably secured on the portion of the stemthat extends into the pipe, said sleeve having anexterior diameter corresponding to the surrounding bore of' the pipe and provided at its outer end with an annular projection that cooperates with the face of the pipe flange to determine the extent to Wliichthe stem may enter the pipe, and a cutting tool positioned to engage the edge of the pipe" flange.`

' 5. An implement for trimming the eripheral edge of a flange formed at the end ot a soft metal pipe comprisinga,rotatable stem provided at one end With a detachable portion having a diameter corresponding to the bore of a pipe to be treated and in# cluding Vmeans adapted to contact with the pipe flange and limit the extent to Which the implement can be inserted in a pipe, and a' cutting blade mounted on the stem and extending across the edge of the pipe flange `when the stem is engaged with the pipe end, 6. The herein described implement, for trimming the peripheral edge of a flange formed at the en'd of a soft metal pipe, comprising a rotatable steinl adapted to enter the flanged end of the pipe, a removable sleeve fitted on the portion of the stem that enters the pipe and having the same diameter as the surrounding bore of the pipe, and aA eut.- ting tool adjustable laterally of the stem and of a length to extend across the edge of the ange.

7 The herein described implement, for trimming the peripheral edge of a ange termed at the end of a soft metal pipe, comprising a. rotatable Stem adapted to enter the anged end of the pipe, radially projecting meansron said stem for engaging the outer face of the pipe flange and determining the distance that the stem may enter the 10 pipe, and. a cutting tool adjustable laterally of the stem and of a length to extend across the edge of the flange.

In testimony whereof We. have hereunto affixed our signatures.

PHILIP MUELLER. ANTON C. SCHUERMANN. 

